Collection place
- North America1,125 objects
- The Americas1,125 objects
- United States1,125 objects
- Nevada758 objects
- Pershing County, Nevada710 objects
- Humboldt Lake Bed, Pershing County, Nevada699 objects
- California147 objects
- Northeastern United States132 objects
- West Virginia132 objects
- Wood County, West Virginia132 objects
- Central California103 objects
- South Central California103 objects
- CA-Fre-115, Fresno County, California101 objects
- Fresno County, California101 objects
- Nye County, Nevada37 objects
- Southeastern United States34 objects
- Southern Great Lakes states, United States32 objects
- Indiana31 objects
- NV-Ny-1272, Nye County, Nevada31 objects
- Northern California28 objects